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Author Debeij, J.; Dekkers, O.M.; Asvold, B.O.; Christiansen, S.C.; Naess, I.A.; Hammerstrom, J.; Rosendaal, F.R.; Cannegieter, S.C. url  doi
  Title Increased levels of free thyroxine and risk of venous thrombosis in a large population-based prospective study Type Journal Article
  Year 2012 Publication Journal of Thrombosis and Haemostasis : JTH Abbreviated Journal J Thromb Haemost  
  Volume 10 Issue 8 Pages 1539-1546  
  Keywords Adult; Aged; Aged, 80 and over; Autoantibodies/blood; Biological Markers/blood; Case-Control Studies; Female; Humans; Logistic Models; Male; Middle Aged; Norway/epidemiology; Odds Ratio; Prospective Studies; Risk Assessment; Risk Factors; Thyrotropin/blood; Thyroxine/*blood; Time Factors; Up-Regulation; Venous Thrombosis/*blood/epidemiology  
  Abstract BACKGROUND: Recent studies have shown that high levels of free thyroxine (FT4), even without leading to hyperthyroidism, are associated with a procoagulant state. OBJECTIVES: The aim of our study was to determine whether high levels of thyroid hormones are associated with an increased risk of venous thrombosis. PATIENTS/METHODS: From a prospective nested case-cohort design within the second Nord-Trondelag Health Study (HUNT2) cohort (1995-1997; 66,140 subjects), all patients with venous thrombosis during follow-up (n=515) and 1476 randomly selected age-stratified and sex-stratified controls were included. Relative and absolute risks for venous thrombosis were calculated for different cut-off levels of thyroid hormones on the basis of percentiles in the controls and different times between blood sampling and thombosis. RESULTS: In subjects with an FT4 level above the 98th percentile (17.3 pmol L(-1)), the odds ratio (OR) was 2.5 (95% confidence interval [CI] 1.3-5.0) as compared with subjects with levels below this percentile. For venous thrombosis within 1 year from blood sampling, this relative risk was more pronounced, with an OR of 4.8 (95% CI 1.7-14.0). Within 0.5 years, the association was even stronger, with an OR of 9.9 (95% CI 2.9-34.0, adjusted for age, sex, and body mass index). For thyroid-stimulating hormone, the relationship was inverse and less pronounced. The absolute risk within 6 months in the population for FT4 levels above the 98th percentile was 6.1 per 1000 person-years (95% CI 1.7-15.7). CONCLUSIONS: Levels of FT4 at the upper end of the normal range are a strong risk factor for venous thrombosis. The risk increased with higher levels of thyroxine and shorter time between blood sampling and thrombosis. Further studies on the effect of clinical hyperthyroidism are warranted.  
  Address Clinical Epidemiology, Leiden University Medical Center, Leiden, the Netherlands  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1538-7836 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:22703181 Approved no  
  Call Number HUNT @ maria.stuifbergen @ Serial 1519  
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Author Hjort, R.; Ahlqvist, E.; Carlsson, P.-O.; Grill, V.; Groop, L.; Martinell, M.; Rasouli, B.; Rosengren, A.; Tuomi, T.; Asvold, B.O.; Carlsson, S. url  doi
  Title Overweight, obesity and the risk of LADA: results from a Swedish case-control study and the Norwegian HUNT Study Type Journal Article
  Year 2018 Publication Diabetologia Abbreviated Journal Diabetologia  
  Volume 61 Issue 6 Pages 1333-1343  
  Keywords Adult; Aged; Autoantibodies/blood; Body Mass Index; Case-Control Studies; Diabetes Mellitus, Type 2/*epidemiology; Female; Humans; Insulin Resistance; Insulin-Secreting Cells/metabolism; Latent Autoimmune Diabetes in Adults/*complications/*diagnosis/*epidemiology; Male; Middle Aged; Norway/epidemiology; Obesity/*complications/epidemiology; Odds Ratio; Overweight/*complications/epidemiology; Prospective Studies; Risk Factors; Sweden; Young Adult; *Andis; *ANDiU; *Body mass index; *Case-control study; *Estrid; *HUNT Study; *Lada; *Latent autoimmune diabetes in adults; *Prospective study; *Type 2 diabetes  
  Abstract AIMS/HYPOTHESIS: Excessive weight is a risk factor for type 2 diabetes, but its role in the promotion of autoimmune diabetes is not clear. We investigated the risk of latent autoimmune diabetes in adults (LADA) in relation to overweight/obesity in two large population-based studies. METHODS: Analyses were based on incident cases of LADA (n = 425) and type 2 diabetes (n = 1420), and 1704 randomly selected control participants from a Swedish case-control study and prospective data from the Norwegian HUNT Study including 147 people with LADA and 1,012,957 person-years of follow-up (1984-2008). We present adjusted ORs and HRs with 95% CI. RESULTS: In the Swedish data, obesity was associated with an increased risk of LADA (OR 2.93, 95% CI 2.17, 3.97), which was even stronger for type 2 diabetes (OR 18.88, 95% CI 14.29, 24.94). The association was stronger in LADA with low GAD antibody (GADA; <median) (OR 4.25; 95% CI 2.76, 6.52) but present also in LADA with high GADA (OR 2.14; 95% CI 1.42, 3.24). In the Swedish data, obese vs normal weight LADA patients had lower GADA levels, better beta cell function, and were more likely to have low-risk HLA-genotypes. The combination of overweight and family history of diabetes (FHD) conferred an OR of 4.57 (95% CI 3.27, 6.39) for LADA and 24.51 (95% CI 17.82, 33.71) for type 2 diabetes. Prospective data from HUNT indicated even stronger associations; HR for LADA was 6.07 (95% CI 3.76, 9.78) for obesity and 7.45 (95% CI 4.02, 13.82) for overweight and FHD. CONCLUSIONS/INTERPRETATION: Overweight/obesity is associated with increased risk of LADA, particularly when in combination with FHD. These findings support the hypothesis that, even in the presence of autoimmunity, factors linked to insulin resistance, such as excessive weight, could promote onset of diabetes.  
  Address Unit of Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, Box 210, 171 77, Stockholm, Sweden  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0012-186X ISBN Medium  
  Area Expedition Conference  
  Notes PMID:29589073 Approved no  
  Call Number HUNT @ maria.stuifbergen @ Serial 2098  
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